1) Great Wall Broadband
长城宽带
1.
Nowadays the three major modes in the broadband market (1) ASDL, represented by China Telecom and Netcom; (2) LAN, represented by the Great Wall Broadband Network Service Co.
目前宽带市场的三种主要模式:(1)以中国电信和网通为代表的ASDL;(2)以长城宽带网络服务有限公司(以下简称长宽)为代表的LAN;(3)以广电集团为代表的HFC。
2) Chengdu great wall broadband network
成都长城宽带网
3) broadband metropolitan area networks
宽带城域网
1.
First,the paper presents conceptions,characteristics and structures of broadband metropolitan area networks,then presents main construction plan for broadband metropolitan area networks such as IP over ATM,IP over SDH,IP over WDM/DWDM,IP over RPR,IP over GE,IP over MSPP,finally presents the principle for construction plan and applications in the electric trades.
论文阐述了宽带城域网的概念、特征和结构,还阐述了IPoverATM,IPoverSDH,IPoverWDM/DWDM,IPoverRPR,IPoverGE,IPoverMSPP等宽带城域网主流组网方案,最后阐述了组网方案选择的原则以及在电力系统通信中的应用。
2.
broadband metropolitan area networks is now focuses of communications networks development .
宽带城域网是当前通信网发展的热点。
5) broadband metropolitan area network
宽带城域网
1.
This paper introduces the concept and definition of broadband metropolitan area network,then discusses the functional architecture model of broadband metropolitan access network.
本文讨论了宽带城域网的概念、定义 ,并针对宽带城域接入网的功能结构模型进行了探讨。
6) the zone of the Great Wall
长城带
1.
Influence of economical and cultural communication in the zone of the Great Wall is abroad and profound During past dynasties,the development of own histories and economical cultures of nationalities have been benefited of communication of continuous economical cultures in the zone of the Great Wall.
长城带经济文化交流的影响十分广泛、深厚,历代各民族的历史和经济文化发展,各民族自身的形成与发展,都直接受益于长城带持续不断的经济文化交流。
补充资料：宽带和窄带业务
宽带业务是相对窄带业务而言的，一般来说，对于速率低于2Mb/s的通信业务统称窄带业务，如电话网、N-ISDN所提供的业务。对于高于2Mb/s的通信业务，如帧中继业务、视频点播、ATM业务、TV会议等称为宽带通信业务。 目前投入应用的宽带接入技术主要有两种：ADSL和FTTX＋LAN。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条